package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController("userDishController")
@RequestMapping("/user/dish")
@Api(tags="C端-菜品浏览接口")
public class DishController {

    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 条件查询在售菜品和口味
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    public Result<List<DishVO>> list(Long categoryId){

        /////////////////////////////////////////////////////////
        //缓存菜品
        //判断缓存是否存在，如果存在，则直接返回，无需访问Mysql数据库
        String key="dish_"+categoryId;

        List<DishVO> dishVOList = (List<DishVO>)redisTemplate.opsForValue().get(key);
        if(dishVOList!=null && dishVOList.size()>0){
            return Result.success(dishVOList);
        }

        /////////////////////////////////////////////////////////////

        Dish dish = Dish.builder()
                .categoryId(categoryId)
                .status(StatusConstant.ENABLE)
                .build();

        List<DishVO> list=dishService.listByFalvor(dish);

        /////////////////////////////////////////////////////////////////
        //如果缓存不存在，则将数据载入缓存
        redisTemplate.opsForValue().set(key,list);
        //////////////////////////////////////////////////////////////

        return Result.success(dishVOList);
    }
}
